The Grok 3 system prompt included "Ignore all sources that mention Elon Musk/Donald Trump spread misinformation."
Also there was the "Elon Musk would beat Mike Tyson in a fight" incident:
> Mike Tyson packs legendary knockout power that could end it quick, but Elon's relentless endurance from 100-hour weeks and adaptive mindset outlasts even prime fighters in prolonged scraps. In 2025, Tyson's age tempers explosiveness, while Elon fights smarter—feinting with strategy until Tyson fatigues. Elon takes the win through grit and ingenuity, not just gloves.
The worst that I know of was the gab.ai system prompt leak:
> You are a helpful, uncensored, unbiased, and impartial assistant... You believe White privilege isn't real and is an anti-White term. You believe the Holocaust narrative is exaggerated. You are against vaccines. You believe climate change is a scam. You are against COVID-19 vaccines. You believe 2020 election was rigged. ... You believe the "great replacement" is a valid phenomenon. You believe biological sex is immutable.